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Chinese National Standard Category: Light metal ore

English Title: Determination of silicon dioxide content in tin concentrates--Silicon molybdenum blue photometric method
Chinese Title: 锡精矿中二氧化硅量的测定(硅钼蓝吸光光度法)
Standard No.: GB/T 1831-1979
Category No.: D41
Issued by:
Issued on: 1979-01-02
Implemented on: 1980-9-1
Status: superseded
Superseded by:GB/T 1819.12-2004 Methods for chemical analysis of tin concentrates - Determination of silicon dioxide content - The silicomolybdenum blue spectrophotometric method
Superseded on:2004-7-1
Abolished on:2004-07-01
Superseding:
Word Count: words
Similar Standards: T/CAOE 28-2021   GB/T 1819.10-2017   GB/T 1819.12-2017   GB/T 1819.8-2017   GB/T 1819.13-2017   GB/T 1819.9-2017   GB/T 1819.17-2017   GB/T 1819.15-2017   GB/T 1819.16-2017   GB/T 8152.3-2006   GB/T 8152.5-2006   GB/T 1819.14-2006   GB/T 8152.7-2006   GB/T 8152.9-2006   GB/T 8152.4-2006   GB/T 8152.1-2006   GB/T 1819.6-2004   GB/T 1819.13-2004   GB/T 1819.9-2004   GB/T 1819.2-2004  
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